* {
  margin: 0px;
  padding: 0px;
  background-color: whitesmoke;
}
.mainbox {
  width: 60%;
  height: 438px;
  cursor: pointer;
  margin: 40px auto;
  border: 2px solid #666;
  padding-top: 100px;
}
.mainbox span {
  display: block;
  width: 60%;
  height: 180px;
  background-color: lightseagreen;
  margin: 0 auto;
  font-size: 136px;
  text-align: center;
  font-weight: 400;
  color: #fff;
}
.mainbox .return {
  width: 400px;
  height: px;
  margin: 0 auto;
  padding-top: 100px;
  padding-left: 260px;
}
.mainbox .return button {
  width: 112px;
  height: 42px;
  background-color: rgba(214, 34, 46, 0.5);
  outline: none;
  color: white;
  letter-spacing: 1px;
  font-size: 15px;
  font-weight: 200px;
  border-radius: 2px;
  display: block;
  line-height: 42px;
  border: none;
  font-weight: 200;
}
